Docker: add dev backend

requirements.txt

-certifi==2017.7.27.1
-chardet==3.0.4
-Django==1.11.6
-djangorestframework==3.7.1
-elasticsearch==5.4.0
-idna==2.6
-olefile==0.44
-Pillow==4.3.0
-psycopg2==2.7.3.2
-pytz==2017.2
-requests==2.18.4
-urllib3==1.22

requirements.txt

+docker/backend/requirements.txt
\ No newline at end of file

src/horae/settings.py

@@ -83,11 +83,11 @@ WSGI_APPLICATION = 'horae.wsgi.application'
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.postgresql',
-        'NAME': 'horae_dev',
-        'USER': 'devuser',
-        'PASSWORD': 'devdata',
-        'HOST': 'localhost',
-        'PORT': 9100,
+        'NAME': os.environ.get('DB_NAME', 'horae_dev'),
+        'USER': os.environ.get('DB_USER', 'devuser'),
+        'PASSWORD': os.environ.get('DB_PASSWORD', 'devdata'),
+        'HOST': os.environ.get('DB_HOST', 'localhost'),
+        'PORT': os.environ.get('DB_PORT', 9100),
     }
 }
 
@@ -142,7 +142,9 @@ REST_FRAMEWORK = {
 }
 
 # Elastic search config
-ELASTIC_SEARCH_HOSTS = ['localhost', ]
+ELASTIC_SEARCH_HOSTS = [
+    os.environ.get('ES_HOST', 'localhost'),
+]
 
 # Silent logger for elasticsearch
 import logging